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Custom Extension Springs

High Tension Performance with Versatile Hook Configurations

Custom Product Overview

Designed to operate under tension, our springs are manufactured to deliver precise load characteristics and predictable deflection. Instead of standard off-the-shelf solutions, we focus on optimizing loop integrity and load capabilities for your specific application. From heavy-duty industrial springs to electronic components, we deliver the perfect fit.

Types & Configurations

Round-end hook

Swivel end hook

Extended eye end

V hook end

Special / Extended Hooks

Square-end hook

Key Features

Precision loop alignment for easy assembly
Optimized high initial tension capabilities
Fatigue resistant shot peening available
Advanced stress relief heat treatment

Technical Specs

WIRE DIAMETER
OUTER DIAMETER
LENGTH MEASUREMENT
LOOP POSITION ORIENTATION
INITIAL TENSION

0.2mm - 8mm

Customizable up to 100mm

L.I.H. & Body Length available

Random, In-line (180°), Cross (90°)

Customizable (High/Std)

Available Materials

Surface Finishes

Zinc Plating, Nickel Plating, Gold Plating

Black Oxide

Powder Coating

Passivation

Shot Peening (for fatigue strength)

High Carbon Steel (Music Wire, Hard Drawn)

Stainless Steel (302, 304, 316, 17-7PH)

Alloy Steel (Chrome Silicon, Chrome Vanadium)

Non-Ferrous (Phosphor Bronze, Beryllium Copper)

Request a Quote

Inquiring about: General Inquiry

START YOUR PROJECT

Ready to Optimize Your Production?

Whether you need a prototype or a high-volume run, our engineering team is ready to assist. Get a response within 2 hours during business hours.

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Factory Location

No. 88 Industrial Road, Dongguan City, Guangdong Province, China

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JIALUNSPRINGS

Your premier partner for comprehensive hardware solutions. Delivering precision springs, stampings, and lathe parts since 1999.

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No. 88 Industrial Road, Dongguan City, Guangdong Province, China

© 2025 Jialun Hardware Springs Co., Ltd. All rights reserved.

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